[FL cruiser]

Originally Posted by 5280Hawk View Post
I have Heavies on it right now, it's already lifted about 3.5" above stock Ht. do you think i would lose lift??

It seems like if you move the front spring perch far enough you could still use the back one as-is. and can't you modify the top spring leaf so the the centering pin still lines up with the axle?

What if you reversed the shackles and the moved the shackle perch all the way in to mount the chevies?

My 60 previously had 3.5" lift and I had to go with Chevy lift springs to maintain height. You would loose lift if you used stock Chevy springs unless you went SOA. Procomp and Superlift make Chevy 3.5" lift springs. The Chevies are so much longer you just gotta move out hangers at both ends and/or make new hangers.
Like Boots 4 said, none of the bolts bushing or hardware can be used. Might as well make new hangers. The springs I bought came with bushings that had a 1/2" hole. I made front hangers out of 3.5" square tube which happens to be 3" ID. The chevy springs are narrower. They would flop around inside the Toyota spring pack holder, so made some craddles to go around the springs and fill up the slack. Also made up some steel centering dowels because the Toyota rubber pads with centering pins wouldn't fit in the craddles. Rear hangers made out of thick wall 2" sq tube and 1.5" ID tube.